This is a video showing how the C57 type 135 on the turntable of the Omiya Railway Museum rotates and the horn demonstration of various vehicles. In commemoration of the 150th anniversary of the opening of the railway, it is a different whistle program than usual. The No. 1 locomotive, the 200 Series Shinkansen, EF55-1, and C57-135 will demonstrate their horns in turn, and the museum staff will give explanations. Also, at the end, EF55 and C57 co-star, which seems to be a special production.
Addendum 2024/7/27
It may be the summer tourist season these days, but there are demonstrations twice a day. The hours are from 12 o'clock and 15 o'clock. Be sure to take a look at the Railway Museum when you visit!